US2443345A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Press control system
Assignee: HPM Development Corp
•
Filing: 1942-08-22
•
Granted: 1948-06-15
•
Expires: 1962-08-22
Abstract
No abstract record available.
Inventors
- 👤 Ernst Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:07
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/08; F15B11/12; F15B11/121; F15B11/123
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2274226A
Cited
US2239862A
Cited
US2234009A
Cited
US2260175A
Cited
US2283168A
Cited
US2298359A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-15 | 1951-12-15 | 1952-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-15 | 1955-12-15 | 1956-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-15 | 1959-12-15 | 1960-06-15 | $7700.00 | Window Closed / Lapsed |